Motorola 700/800-Series User Manual

Entering and Debugging Programs

4-9

For additional information about the offset registers, refer to the 
Debugging Package for Motorola 68K CISC CPUs User's Manual. 

Some 162Bug commands give you the option to choose the port to 
be used to input or output. Valid port numbers which may be used 
for these commands are as follows: 

1. MVME162 EIA-232-D Debug (Terminal Port 0 or 00) (Port 1 

on the MVME162LX J17 front panel connector). Sometimes 
known as the ÔÔconsole portÕÕ, it is used for interactive user 
input/output by default. 

2. MVME162 EIA-232-D (Terminal Port 1 or 01) (Port 2 on the 

MVME162LX J17 front panel connector). Sometimes known 
as the ÔÔhost portÕÕ, this is the default for downloading, 
uploading, concurrent mode, and transparent modes. 

3. MVME162 EIA-232-D (Terminal Ports 2 or 02 and 3 or 03) 

(Port 3 and Port 4 on the MVME162LX J17 front panel 
connector). Additional serial ports available.

These logical port numbers (0, 1, 2, and 3) are shown in 
the pinouts of the MVME162LX module as SERIAL 
PORT 1, SERIAL PORT 2, SERIAL PORT 3, and 
SERIAL PORT 4, respectively. Physically, they are all 
part of the front panel 8-pin RJ-45 connectors on J17.

There are various ways to enter a user program into system 
memory for execution:

❏

Create the program with the assembler/disassembler

❏

Download an S-record object file

❏

Read the program from disk